: This operator combines the results of the original query with a new, malicious SELECT statement.
This specific payload uses a technique:
: These are placeholders used to match the number and data type of columns in the original query. The specific string 'qbqvq'||'pBDUArKiBK'||'qqbqq' is a unique marker; if it appears on the webpage, the attacker knows the injection was successful. : This operator combines the results of the